Blocking ads on Android has become an important security measure. Here's how I do it using this nifty Android app.

Whether it's a known contact or a random number, learn how you can block the sender in WhatsApp without opening the conversation.

WXIN/WTTV – According to YouMail, Americans received roughly 52 billion spam calls last year. It seems like robocallers are always one step ahead of new laws and technology designed to block them out.

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. If there's one thing people ...